Just finished the game and loved it. I did wait and played all 5 episodes back-to-back, I have no patience to play 2 hours/wait 2 months...
I played like I was Max, and behaved the way I would have behaved, to me it seems the only honest approach to this wonderful story. I also never rewound unless it was needed to progress the game (steal Frank's keys, find out info etc.)
That said, I of course saved Chloe. That's what I would have done in real life - save a loved one, screw the rest. Selfish, I know, but selflessness rarely pays off in the long run... And I'm fine with the ending, riding off into the future disconnected from everything, leaving it in the past. In my story, the tornado concludes the sequence of events, Chloe is saved and Max loses her powers forever. Some people survive, but do I care who? No, Chloe is alive, and that is all I need to know to make me satisfied.
I never felt any of my choices were meaningless. All of them, from watering the plant to saving Alyssa at the end meant something. Sure, not all of them were consequential to the big picture, but not everything needs to be streamlined toward a single goal.
Not to be boring, I just wanted to share my love of the game and my thoughts. I am very happy I played it.